Smallville Season 10 Episode 10, Last season "Smallville" this week through Friday, and took the next week with the tenth episode, an adventure-alternate universe featuring the return of John Glover as Lionel Luthor.

Entitled "Luthor," has the December 3rd episode of Clark Kent (Tom Welling), who we know and love intentionally trades places with the evil version of himself that was adopted by Lionel Luthor in an alternative universe (and no, the "bad Clark" doesn 't sport beard evil, sadly). This episode also has a long feature directorial debut producer "Smallville" Kelly Souders, who gets behind the camera for a story Q. Bryan Miller-writing.

The CW has released a lot of photos from the episode showing Clark and Lionel do a little fence.

Do I, or whether the evil characters always spend much time fence? It's like the official sport of the wicked. Am I correct?

However, this is the official plot synopsis for "Luthor":

"Luthor" (CONTENT RATING TBD (HDTV)
John Glover Lionel Luthor RETURNS AS; EXECUTIVE PRODUCER KELLY MAKES HER Souders Debut director - Tess (Cassidy Freeman) acquire Krypton box that once belonged to Lionel Luthor (John Glover). When Clark (Tom Welling) accidentally activate the box, he was taken to a parallel world where Clark Lionel found in the cornfield not Kents. In this universe, Luthor is a murderer Clark and Lois (Erica Durance) is engaged to Oliver (Justin Hartley) and both hate Clark. Clark should be careful to not tip off that he was not her son Lionel when trying to figure out how to return to Earth where the monster Luthor Clark is transported in its place. Executive producers Kelly Souders directed the episode written by Bryan Q. Miller (3X6010).